CN213960042U

CN213960042U - Intelligent unidirectional conduction device with remote debugging function

Info

Publication number: CN213960042U
Application number: CN202120153261.2U
Authority: CN
Inventors: 王禹桥; 陈宇鸣; 杨雪锋; 盛连超; 李允彩; 徐引; 殷磊; 李清伟; 王承涛; 李威
Original assignee: Xuzhou Zhongkuang Transmission Track Technology Co ltd
Current assignee: Xuzhou Zhongkuang Transmission Track Technology Co ltd
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2021-08-13
Anticipated expiration: 2031-01-20

Abstract

An intelligent one-way conduction device with a remote debugging function belongs to the field of stray current corrosion protection. The intelligent unidirectional conduction device comprises a unidirectional conduction main control system, an externally expanded auxiliary debugging system and a remote server system; the one-way conduction master control system comprises a master control device and a driving device. The main control device can adjust the voltage at two ends of the insulation section, so that the condition of electric arc generation is damaged when the subway train passes through the insulation section; the external auxiliary debugging device is communicated with the main control device in a serial port mode, and real-time voltage, current and other information is obtained in real time through the serial port; the auxiliary debugging device of the external expansion carries a debugging process, and the debugging process can receive the instruction and the related control parameters sent by the remote server system in real time. The advantages are that: the problems are conveniently checked, and the research, development and after-sale cost is saved; the requirements of online programming debugging, diagnosis maintenance, software upgrading, data acquisition and operation parameter optimization are met, and the operation time of the unidirectional conduction device is improved.

Description

Intelligent unidirectional conduction device with remote debugging function

Technical Field

The utility model relates to a stray current corrodes protection field, especially an intelligence one-way device that switches on with remote debugging function.

Background

With the development of science and technology and urbanization, rail transit (subway and light rail) with large traffic volume plays an increasingly important role in cities, and becomes an indispensable part in the life of urban people.

Because the ballast track beds are adopted in the parking lot and the vehicle section, the leakage resistance of the steel rail to the ground is lower than that of the integral track bed on the positive line, and if the track adopts the form of direct full-line communication, the leakage of a large stray current can be caused even if no locomotive runs in the weak insulation area. Therefore, in order to ensure that the positive line current does not leak into the ground through the steel rail in the field section, an insulating joint and a common one-way conduction device are usually arranged on the steel rail at the boundary point of the ballast track bed and the whole track bed in the entrance section (field). However, although the insulation joint plus one-way conduction mode can relieve the stray current leakage of the section, due to the reverse cut-off function of the one-way conduction device, the traction backflow can only flow back to the traction substation from one side of the rail, and the one-way backflow mode can cause sudden changes in voltage and current at the contact position of the train and the steel rail at the moment when the subway passes through the insulation joint, so that high-strength electric arcs are generated and the rail potential is increased, and particularly when a locomotive passes through the insulation joint in a regenerative braking mode, the arcing phenomenon is more serious due to the change of the current direction. The burning of the insulation joint can have serious consequences, and firstly, the insulation joint is difficult to replace after being burnt, the maintenance time is long, and the normal operation of the train is influenced. And secondly, when the insulation joint is subjected to arc discharge and burnt, the steel rail can be burnt, so that the unevenness of the steel rail is caused, and the driving safety is influenced when the train runs at high speed. The rising of the track potential can not only endanger the safety of passengers, but also increase the leakage of stray current and generate electrochemical corrosion on the peripheral metal structure, thereby causing economic loss and potential safety hazard.

In order to suppress arcing and a rise in track potential when a train enters (exits) the insulation section, the voltage difference between the rails at the two ends of the insulation section should be eliminated so as to be lower than the arcing voltage. The one-way conduction device can inhibit electric arc ignition and track potential rise during the process of inhibiting the train from entering (exiting) an insulation section, however, the one-way conduction device needs to switch different control strategies according to a real-time environment, controls parameters in different time periods, needs to be modified in real time, and cannot meet the requirements of online programming debugging, diagnosis and maintenance, software upgrading, data acquisition, operation parameter optimization and the like, so that the operation time and the economic benefit of the one-way conduction device are influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the problem that exists among the background art, provide an intelligence one-way device that switches on with remote debugging function, improve the operating duration of one-way device that switches on.

The purpose of the utility model is realized like this: the intelligent unidirectional conduction device with the remote debugging function comprises: the subway train runs on the subway running rails;

further comprising: the device comprises a one-way conduction device, an insulation section, a current detection module, a silicon controlled thyristor, a voltage detection device, a driving device, an auxiliary power circuit, a main control device, an auxiliary debugging device, a voltage lifting device and server equipment;

the voltage detection device, the thyristor and the current detection device form a series circuit, and the series circuit and the one-way conduction device are simultaneously bridged at a joint part of the insulating section and the subway running rail;

the output ends of the voltage detection device and the current detection device are connected to the voltage lifting device, and the voltage lifting device is connected with an AD sampling pin of the main control device;

the auxiliary power supply circuit is connected to the main control device and the power supply pins of the driving device;

the input end of the driving device is connected with a high-grade IO port in the main control device, and the output end of the driving device is connected with the controllable end of the thyristor so as to control the on or off of the thyristor;

a serial port output pin of the main control device is connected with a serial port of the auxiliary debugging device;

the auxiliary debugging device carries out bidirectional communication with the server equipment through the Ethernet interface of the auxiliary debugging device to complete the remote debugging task of the equipment.

The auxiliary debugging device is internally provided with a serial port, an Ethernet interface and an auxiliary debugging chip; and a communication process and a debugging process are programmed in the auxiliary debugging device chip.

The intelligent unidirectional conduction device with the remote debugging function is divided into a unidirectional conduction main control system, an externally expanded auxiliary debugging system and a remote server system; the one-way conduction master control system comprises a master control device and a driving device. Firstly, the main control device can adjust the voltage at two ends of the insulation section, so that the condition of electric arc generation is destroyed when the subway train passes through the insulation section; and secondly, the externally-expanded auxiliary debugging device is communicated with the main control device in a serial port mode, and real-time voltage, current and other information is acquired in real time through the serial port. And finally, a debugging process is carried in the externally-expanded auxiliary debugging device, and the debugging process can receive the instruction and the related control parameters sent by the remote server system in real time.

The one-way conduction main control system can acquire voltage and current information of two ends of the insulating joint in real time, provides a trigger signal for the silicon controlled rectifier according to the voltage difference of the two ends of the insulating joint, and when the reverse voltage reaches a set threshold value, the inside of the main control device completes the calculation of output voltage through a PID control algorithm, and completes the function of adjusting the voltage of the two ends of the insulating joint under the assistance of the driving device, so that the condition that an electric arc is generated when a subway train passes through the insulating joint cannot be met.

The auxiliary debugging system is an auxiliary debugging device consisting of a serial port, an Ethernet interface and an auxiliary debugging chip, an LINUX system is arranged in the auxiliary debugging device, and an auxiliary debugging process is designed on the LINUX system; the auxiliary debugging process can receive the instruction and the related control parameters sent by the remote server in real time; and the auxiliary debugging process analyzes the instruction sent by the remote server in real time, and remotely sets breakpoints, reads and analyzes historical data.

The remote server system is communicated with the auxiliary debugging system in a TCP/IP mode based on a network, and can store the field real-time voltage and current data into the server; debugging personnel can also send debugging instructions to the auxiliary debugging system, and the auxiliary debugging system can control the relevant behaviors of the DSP main control system after analyzing the debugging instructions.

Overcome the problem that exists among the background art, improved the operating duration of one-way conduction device, reached the utility model discloses a purpose.

The advantages are that: the utility model is convenient to check the problems and greatly saves the research, development and after-sale cost on the basis of ensuring the reliable operation of the one-way conduction device; the requirements of online programming debugging, diagnosis maintenance, software upgrading, data acquisition and operation parameter optimization can be met, the operation time of the one-way conduction device is improved, and economic benefits are ensured.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is the schematic diagram of the two-way wireless communication structure of the auxiliary debugging device and the server device of the present invention.

Fig. 3 is a schematic diagram of the voltage lifting device of the present invention.

In the figure: 1. a one-way conduction device; 2. an insulating section; 3. a current detection module; 4. a thyristor; 5. a voltage detection device; 6. a drive device; 7. an auxiliary power supply circuit module; 8. a master control system; 9. an auxiliary debugging device; 10. an Ethernet interface; 11. a serial port; 12. auxiliary debugging of the chip; 13. a voltage raising device; 14. a server device; 15. a subway running rail; 16. provided is a subway train.

Detailed Description

The invention will be further described with reference to the following examples in the drawings:

example 1: the intelligent unidirectional conduction device comprises a unidirectional conduction main control system, an externally expanded auxiliary debugging system and a remote server system; the one-way conduction master control system comprises a master control device and a driving device. Firstly, the main control device can adjust the voltage at two ends of the insulation section, so that the condition of electric arc generation is destroyed when the subway train passes through the insulation section; and secondly, the externally-expanded auxiliary debugging device is communicated with the main control device in a serial port mode, and real-time voltage, current and other information is acquired in real time through the serial port. And finally, a debugging process is carried in the externally-expanded auxiliary debugging device, and the debugging process can receive the instruction and the related control parameters sent by the remote server system in real time.

The one-way device that switches on of intelligence includes: a subway train 16 and a subway running rail 15, wherein the subway train 16 runs on the subway running rail 15;

further comprising: the device comprises a one-way conduction device 1, an insulating joint 2, a current detection module 3, a silicon controlled thyristor 4, a voltage detection device 5, a driving device 6, an auxiliary power circuit 7, a main control device 8, an auxiliary debugging device 9, a voltage lifting device 13 and server equipment 14;

the voltage detection device 5, the thyristor 4 and the current detection device 3 form a series circuit, and the series circuit and the unidirectional conducting device 1 are simultaneously bridged at the joint part of the insulating joint 2 and the subway running rail 15;

the output ends of the voltage detection device 5 and the current detection device 4 are connected to a voltage lifting device 13, and the voltage lifting device 13 is connected with an AD sampling pin of the main control device 8;

the auxiliary power supply circuit 7 is connected to the power supply pins of the main control device 8 and the driving device 6;

the input end of the driving device 6 is connected with a high-grade IO port in the main control device 8, and the output end of the driving device 6 is connected with the controllable end of the thyristor 4, so that the thyristor is controlled to be switched on or switched off;

a serial port output pin of the main control device 8 is connected with a serial port 11 of the auxiliary debugging device 9;

the auxiliary debugging device 9 performs bidirectional communication with the server device 14 through the Ethernet interface 10 thereof, and completes the remote debugging task of the device.

The auxiliary debugging device 9 is internally provided with a serial port 11, an Ethernet interface 10 and an auxiliary debugging chip 12; a communication process and a debugging process are programmed in the auxiliary debugging apparatus chip 12.

The main control device 8 adopts an STM32F407zgt6 chip of ST company, the main frequency of the chip is as high as 168MHz, the MPU can realize the performance of 210DMIPS/1.25DMIPS/MHz (Dhrystone 2.1), and the chip has a DSP instruction set.

The auxiliary debugging device selects an S5PV210 chip based on Cortex-A8 as an inner core as a processing chip.

The driving device 6 adopts a half-bridge driving chip UCC27211 of TI as a driving chip, a diode for charging a bootstrap capacitor is integrated in the device, the voltage resistance is 120V, and the driving current reaches 4A.

The voltage raising device 13 is composed of a voltage follower, an adder and a plurality of electronic devices. The voltage follower and the adder adopt an operational amplifier of LM224 model and are provided with resistors with the resistance values of 5K and 10K.

The unidirectional conducting device 1 is formed by connecting 6 silicon diode branches in parallel, and a fast fuse is connected in each diode branch in series.

The thyristor 4 is a TM-10T3B-M thyristor produced by Shanghai New Pengsen New energy science and technology Limited.

The auxiliary power circuit 7 uses an LRS-350-24 type power supply produced by a Minwex formula, the rated power is 350W, and the size is 215 × 115 × 30 (mm).

The server device 14 is an arrhizus server with a model number of n4 and a 4-core 8G memory.

In fig. 1, the intelligent unidirectional conducting device with remote debugging function includes: the system comprises a one-way conduction main control system, an auxiliary debugging system and a remote server system.

The one-way conduction main control system and the auxiliary debugging system are respectively as follows: a main control device and an auxiliary debugging device 9,

the unidirectional conduction master control system comprises a master control device and a driving device; the main control device is used for controlling and adjusting the voltage at the two ends of the insulating joint, and the auxiliary debugging module is used for receiving and analyzing the instructions of the server end and executing corresponding processing programs according to the different instructions. The control flow is as follows: the unidirectional conduction master control system can acquire voltage and current information at two ends of the insulating joint in real time. And providing a trigger signal for the controllable silicon based on the voltage difference between the two ends of the insulation node. When the reverse voltage reaches a set threshold value, the interior of the DSP controller completes the calculation of the output voltage through a PID control algorithm, and completes the function of adjusting the voltage at two ends of the inductor under the assistance of the driving device, so that the condition of generating the electric arc can not be met when the subway passes through the insulating section.

The auxiliary debugging device is internally provided with a LINUX system, and an auxiliary debugging process is designed for the LINUX system. The debugging process can receive the instruction sent by the remote server and the related control parameters in real time. After the debugging process analyzes the instruction sent by the remote server in real time, the debugging process has the functions of remotely setting a breakpoint and reading and analyzing historical data. The remote server network communicates with the auxiliary debugging system in a TCP/IP mode, and can store the field real-time voltage and current data into the server. Debugging personnel can also send debugging instructions to the auxiliary debugging system, and the auxiliary debugging system can control the relevant behaviors of the DSP main control system after analyzing the debugging instructions.

In fig. 2, the utility model discloses a server side framework picture, supplementary debugging device and server equipment end communicate through the mode of TCP/IP agreement, and server equipment end can receive the encrypted data that comes from supplementary debugging device and send to in the server of network will be encrypted data storage. In a network at a server equipment end, an operator can read not only historical data, but also data such as voltage, current and the like of the current subway insulation joint by sending corresponding instructions. Meanwhile, a data analysis tool configured on the service equipment network can assist an operator in designing controller parameters, dynamically adjusting threshold voltage and the like.

In fig. 3, a schematic structural diagram of the voltage lifting device 13 of the present invention, the voltage lifting device 13 is composed of a voltage follower, an adder and a plurality of electronic devices; the front end isolates signals by using a voltage follower, and then an adder superposes the original signals and +2.5V signals obtained by +5V voltage division, so that the sampling of the signals is completed.

Claims

1. An intelligent unidirectional conduction device with a remote debugging function comprises: the subway train runs on the subway running rails;

the method is characterized in that: further comprising: the device comprises a one-way conduction device, an insulation section, a current detection module, a silicon controlled thyristor, a voltage detection device, a driving device, an auxiliary power circuit, a main control device, an auxiliary debugging device, a voltage lifting device and server equipment;

2. The intelligent unidirectional flux device with the remote debugging function as claimed in claim 1, wherein: the auxiliary debugging device is internally provided with a serial port, an Ethernet interface and an auxiliary debugging chip; and a communication process and a debugging process are programmed in the auxiliary debugging device chip.